NocoBase v2.0.32: Add table of contents to README

[client]
- subform relationship field failed to save (#9004) by @jiannx
- the subforms of the fields do not display data (#9008) by @jiannx
- Fixed the issue where ctx.request could not override the Authorization header. (#8850) by @gchust
[server] Add serving check to avoid app status updated by non-serving instance (#8959) by @mytharcher
[AI employees]
- Fixed the issue when using deepseek or minmax models on dashscope (#9033) by @cgyrock
- Fixed the issue where abort AI employees reasonning would cause the service to crash (#9031) by @cgyrock
[Workflow: HTTP request node] Sanitized workflow request node results to avoid exposing request config, defaulted new nodes to return response data only, and added debug logging for failed requests. (#9024) by @mytharcher
[Collection field: Sort] fix(field-sort): prevent crash when scopeKey attribute is undefined (#9019) by @gaston98765
[Block: GridCard] Fixed the problem that the button is not refreshed when the grid card is refreshed (#9021) by @jiannx
[Workflow: Approval]
- Add fault-tolerant on workflow deleted, to avoid load error in tasks list by @mytharcher
- Add fault-tolerant for no latestRound by @mytharcher